INT 15 - APM SL Enhanced v1.0 - SET CPU SPEED MODE AX = 5380h BH = 0Dh CL = CPU clock divider (1,2,4 or 8) BL = autocpumode ??? Return: CF clear if successful Desc: writes bits 4-5 of CPUPWRMODE register SeeAlso: AX=5380h/BH=0Ch,AX=5380h/BH=7Eh,AX=5380h/BH=7Fh